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In this paper we extend our previous work on soft probabilistic contracts for QoS management, from the particular case of "response time", to general QoS parameters. Our study covers composite QoS parameters dealing not only with time aspects but also with quality of data. We also study contract composition (how to derive QoS contracts for an orchestration from the QoS contracts with its...
In business processes, buyers and suppliers define a contract between the two parties such as quality of service(QOS) and quality of products. Organizations operating in modern markets require an excellent service management. When services or products are created or managed using workflow processes, the workflow management system should predict, monitor and control the QOS rendered to customers according...
Services in service-oriented computing (SOC) are often black-box since they are typically developed by 3rd party developers and deployed only with their interface specifications. Therefore, internal details of services and implementation details of service components are not readily available. Also, services in SOC are highly evolvable since new services can be registered into repositories, and existing...
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